However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
To become a marine biologist, you will likely need at least a bachelor's degree, and possibly graduate work, such as a master's or Ph.D.degree. Since marine biology jobs are competitive, it will usually be easier to get a position if you have gained relevant experience during high school or college.o become a marine biologist, you will likely need at least a bachelor's degree, and possibly graduate work, such as a master's or Ph.D.